CVE-2022-49367
Linux kernel DSA mv88e6xxx Reference Count Leak
Description
In the Linux kernel, the following vulnerability has been resolved: net: dsa: mv88e6xxx: Fix refcount leak in mv88e6xxx_mdios_register of_get_child_by_name() returns a node pointer with refcount incremented, we should use of_node_put() on it when done. mv88e6xxx_mdio_register() pass the device node to of_mdiobus_register(). We don't need the device node after it. Add missing of_node_put() to avoid refcount leak.
INFO
Published Date :
Feb. 26, 2025, 7:01 a.m.
Last Modified :
April 14, 2025, 8:42 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Ensure of_node_put() is called for device nodes.
- Review and apply kernel patches related to DSA drivers.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2022-49367.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-49367 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2022-49367
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2022-49367 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-49367 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Apr. 14, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE NVD-CWE-Other Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.198 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.247 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.18 up to (excluding) 5.18.4 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 5.17.15 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.47 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.122 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.11 up to (excluding) 4.14.283 Added Reference Type kernel.org: https://git.kernel.org/stable/c/02ded5a173619b11728b8bf75a3fd995a2c1ff28 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/42658e47f1abbbe592007d3ba303de466114d0bb Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/86c3c5f8e4bd1325e24f6fba9017cade29933377 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/8a1a1255152da4fb934290e7ababc66f24985520 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/a101793994c0a14c70bb4e44c7fda597eeebba0a Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/c1df9cb756e5a9ba1841648c44ee5d92306b9c65 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/dc1cf8c6f9793546696fded437a5b4c84944c48b Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/e0d763d0c7665c7897e4f5a0847ab0c82543345f Types: Patch -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Feb. 26, 2025
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: net: dsa: mv88e6xxx: Fix refcount leak in mv88e6xxx_mdios_register of_get_child_by_name() returns a node pointer with refcount incremented, we should use of_node_put() on it when done. mv88e6xxx_mdio_register() pass the device node to of_mdiobus_register(). We don't need the device node after it. Add missing of_node_put() to avoid refcount leak. Added Reference https://git.kernel.org/stable/c/02ded5a173619b11728b8bf75a3fd995a2c1ff28 Added Reference https://git.kernel.org/stable/c/42658e47f1abbbe592007d3ba303de466114d0bb Added Reference https://git.kernel.org/stable/c/86c3c5f8e4bd1325e24f6fba9017cade29933377 Added Reference https://git.kernel.org/stable/c/8a1a1255152da4fb934290e7ababc66f24985520 Added Reference https://git.kernel.org/stable/c/a101793994c0a14c70bb4e44c7fda597eeebba0a Added Reference https://git.kernel.org/stable/c/c1df9cb756e5a9ba1841648c44ee5d92306b9c65 Added Reference https://git.kernel.org/stable/c/dc1cf8c6f9793546696fded437a5b4c84944c48b Added Reference https://git.kernel.org/stable/c/e0d763d0c7665c7897e4f5a0847ab0c82543345f